Relative economic benefits of tactical anthelmintic treatment and urea-molasses block supplementation of Boer goats raised under extensive grazing conditions at Onderstepoort, Pret... by A.F. Vatta, R.C. Krecek, R.A. Pearson, M.F. Smith, M.O. Stenson, E.F. Van Wijk, L.J.S. Harrison

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